Omanyte is a snail-like Pokémon that died out millions of years ago. It has many tentacles, which it used to crawl along the muddy seafloor. It has two large eyes that just stick out under its curvy shell. It is based on the ancient sea-creatures Ammonites.
Omanyte has the abilities Swift Swim and Shell Armor. Swift Swim allows Omanyte's speed to increase when in the rain while Shell Armor protects Omanyte against Critical Hits.